Sleep StagesSleepSleep, REMPolysomnographyWakefulnessSleep DisordersElectroencephalographyActivity CyclesSleep Apnea SyndromesSleep Apnea, ObstructiveCircadian RhythmArousalElectrooculographySleep Initiation and Maintenance DisordersNocturnal Myoclonus SyndromeCell CycleSleep Apnea, CentralDelta RhythmSleep DeprivationSignal Processing, Computer-AssistedElectromyographySupine PositionTime FactorsActigraphyRespirationBody TemperatureDisorders of Excessive SomnolenceSleep BruxismAutonomic Nervous SystemSleep Disorders, IntrinsicHeart RateSeverity of Illness IndexPostureNonlinear DynamicsMenstrual CycleSleep Medicine SpecialtySleep Arousal DisordersAnalysis of VarianceSnoringNarcolepsySleep ParalysisDreamsREM Sleep Behavior DisorderOxygenReference ValuesBrainContinuous Positive Airway PressureCell Cycle Proteins